When a PCM trigger-start fails at snd_pcm_do_start(), PCM core tries to undo the action at snd_pcm_undo_start() by issuing the trigger STOP manually. At that point, we forgot to set the stop_operating flag, hence the sync-stop won't be issued at the next prepare or other calls.
This patch adds the missing stop_operating flag at snd_pcm_undo_start().
Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation") Link: https://lore.kernel.org/r/b4e71631-4a94-613-27b2-fb595792630@carlh.net Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/pcm_native.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index ba6e44d02faa..e3deec62b9a1 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1432,8 +1432,10 @@ static int snd_pcm_do_start(struct snd_pcm_substream *substream, static void snd_pcm_undo_start(struct snd_pcm_substream *substream, snd_pcm_state_t state) { - if (substream->runtime->trigger_master == substream) + if (substream->runtime->trigger_master == substream) { substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP); + substream->runtime->stop_operating = true; + } }
static void snd_pcm_post_start(struct snd_pcm_substream *substream,